I think I’ve settled on the latter. Disagreement is maybe best communicated by the absence of an upvote? And downvotes work best when they signal something that is just off base, and while not reportable, is not appreciated at a broad cultural level.
It would be useful if people actually used it to burrow trolls, sealions and irrelevant comments as intended, but as I’ve seen people can’t be trusted with that because as you say: It becomes a “disagree” instead, that targets everything that people disagree with. It gets inane on political topics where useless comments for the right tribe gets immensely upvoted. “Covfefe” Yes, very informative. There could be alternate vote for agreement, funny, or troll mark.
Yeah I like this, definitely a troll button next to the vote buttons would be really useful for users to self-moderate comments